ChromeOS: Add support for Gaia v2 API to FakeGaia and screen handler.

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
index c296ffb1e56752c7fb4e1a7fc98bfa9cca994c4c..88d1809a9abd3acf5daf281fb3c848f03445b8dd 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc
@@ -351,9 +351,13 @@ void GaiaScreenHandler::LoadGaiaWithVersion(
     params.SetString("gaiaUrl", eafe_url);
     params.SetString("gaiaPath", eafe_path);
   }
+
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kCrosGaiaApiV1)) {
     params.SetString("chromeOSApiVersion", "1");
+  } else if (use_easy_bootstrap_) {
+    // Easy bootstrap is not v2-compatible
+    params.SetString("chromeOSApiVersion", "1");
   }
 
   frame_state_ = FRAME_STATE_LOADING;